Share

Snow, Sleet, Freezing Rain Target Texas, Louisiana

Alan Raymond and Jon Erdman
Published: January 23, 2014

Winter storm warnings and winter weather advisories have been issued for over 10 million from central Texas to western and central Louisiana in anticipation of a quick-hitting disturbance Thursday and Friday.

Background

Current Winter Weather Alerts

Current Winter Weather Alerts

Current Winter Weather Alerts

Current Winter Weather Alerts
Background

Current Temperatures

Current Temperatures

Current Temperatures

Current Temperatures
Background

Thursday Night's Forecast

Thursday Night's Forecast

Thursday Night's Forecast

Thursday Night's Forecast
Background

Friday's Forecast

Friday's Forecast

Friday's Forecast

Friday's Forecast

As a shot of cold Arctic air dives deep into the heart of Texas Thursday, a disturbance in the upper atmosphere will drop south through the Rockies at the same time. This combination will wring out some precipitation across parts of central, south, and southeast Texas and parts of southern Louisiana.

Precipitation may start as light rain Thursday along the I-10 corridor from southwest Louisiana to central Texas.

As Arctic air arrives in central and parts of south Texas, precipitation will change to a mix of snow, sleet and freezing rain from west to east across this I-10 corridor into at least southwest Louisiana, including areas from Austin and San Antonio to Houston and Lake Charles from late Thursday afternoon into early Friday.

As the temperatures fall, at least some ice is expected to build up on bridges, overpasses, and elevated freeways (for example, the double-deck section of I-35 in Austin) as moisture from the earlier rainfall freezes up on any untreated pavement. This will lead to a dangerous commute Friday morning in these areas.

Sleet and ice accumulations of one-tenth to one-quarter of an inch are possible in some areas, with peak icing occurring in trees, powerlines, and on vehicle tops. Widespread power outages are not anticipated, though some sagging tree limbs are possible, in a few spots. 

(MORE: Ice Storm Impacts)

As far as snowfall accumulations, parts of central and southeast Texas may pick up a dusting of snow, under one inch in all locations. That said, this snow may accumulate on top of, and therefore mask, sleet and ice accumulations, adding to the danger of travel in this area.

(MORE: 10 Shocking Snow Cities)

The light wintry mix is expected to shut off late Friday afternoon or Friday evening for most areas.

This weekend, much warmer air will return to the region. That should preclude any long-lasting impacts from this quick shot of wintry weather.

MORE: Winter Storm Janus

A snowman made with cookies and a red plastic cup sits in front of the Lincoln Memorial in Washington, Wednesday, Jan. 22, 2014. (AP Photo/Charles Dharapak)


Featured Blogs

Gonzalo Brushes Newfoundland; Ana Drenching Hawaii

By Dr. Jeff Masters
October 19, 2014

What is the Wettest Month of the Year in the U.S.?

By Christopher C. Burt
October 10, 2014

Brian Brettshneider of Borealis Scientific has done some impressive research concerning what the wettest calendar month of the year might be by employing data from 8,535 official NCDC sites from across the U.S. utilizing the latest 30 years of record (1981-2010). His conclusion is that June is, overall, most frequently the wettest month in the U.S. with 2,053 of the 8,535 sites reporting such. April, at the other end of the spectrum, reports only 76 sites of the 8,535 as their wettest month. This is a guest blog by Brian and below are the results of his research (both text and maps are his).

Live Blog: Tracking Hurricane Arthur as it Approaches North Carolina Coast

By Shaun Tanner
July 3, 2014

This is a live blog set up to provide the latest coverage on Hurricane Arthur as it threatens the North Carolina Coast. Check back often to see what the latest is with Arthur. The most recent updates are at the top.

Tropical Terminology

By Stu Ostro
June 30, 2014

Here is some basic, fundamental terminology related to tropical cyclones. Rather than a comprehensive and/or technical glossary, this represents the essence of the meaning & importance of some key, frequently used terms.

2013-14 - An Interesting Winter From A to Z

By Tom Niziol
May 15, 2014

It was a very interesting winter across a good part of the nation from the Rockies through the Plains to the Northeast. Let's break down the most significant winter storms on a month by month basis.

What the 5th IPCC Assessment Doesn't Include

By Angela Fritz
September 27, 2013

Melting permafrost has the potential to release an additional 1.5 trillion tons of carbon into the atmosphere, and could increase our global average temperature by 1.5°F in addition to our day-to-day human emissions. However, this effect is not included in the IPCC report issued Friday morning, which means the estimates of how Earth's climate will change are likely on the conservative side.